Stormwater Program Wateshed Management Plan …...ACCOTINK CREEK AC9238 Long Branch (9238) Stream Restoration 2500lf PROVIDENCE GROUP 2 ACCOTINK CREEK AC9546 Mantua Elementary School

November 29, 2012

Stormwater Program Watershed Management Plan

and Community Update

Stormwater Drivers

• MS4 Permit

• Bay TMDL

• Other TMDLs

• Maintenance of existing facilities

• Public Safety /Emergency Response

• Dam Regulations

MAJOR COMPONENTS OF FAIRFAX COUNTY’S STORMWATER

PROGRAM • Conveyance Systems

• Dam Safety and Facility Rehabilitation

• Emergency and Flood Response

• Operations

• Stormwater Regulatory Program

• Streams and Water Quality

CONVEYANCE SYSTEMS

• Inspect and maintain approximately 1,500 miles of storm sewer

• Investigate storm drainage and flooding complaints

• Maintain inventory of county facilities

Pipe Before Lining

Pipe After Lining

DAM SAFETY AND FACILITY REHABILITATION

• Dam certification and regulatory compliance

• Dam inspection and maintenance

• Dredging

EMERGENCY AND FLOOD RESPONSE

• National Flood Insurance Program

• Community Rating System (CRS)

• Storm monitoring

• Flood response

• Snow removal

STORMWATER REGULATORY PROGRAM

• TMDL compliance

• MS4 permit • 18 permit elements

including: • Monitoring and

assessment

• Illicit discharge response

• Outreach and Education

• Watershed Planning

MONITORING

• Annual stream bio-assessments (since 1999)

• Evaluate trends in stream health countywide • Benthic macro-invertebrates

• Fish community

• Bacteria (E. coli)

Stream Quality Index

USGS Study

• USGS stream gaging study (since 2007)

• Evaluate long-term trends in

flow, nutrients and sediment • Calculate actual annual loads

and yields of N, P & TSS

• Determine

effectiveness/impacts of

improvement projects on water

quality/quantity at the

watershed scale - over time

NON-STRUCTURAL PROJECTS

•Rain Barrel Program •Buffer Restoration •Dumpsite/Obstruction

Removal •Community Outreach

& Public Education •Stream clean-ups

WATERSHED MANAGEMENT PLANS

• 13 watershed

management plans (30

watersheds)

• Plans used to help

identify projects for

project implementation.

• All plans are available

online at

www.fairfaxcounty.gov/

watersheds

STREAMS AND WATER QUALITY STRUCTURAL PROJECTS

• Stormwater Pond Retrofits

• LID Implementation

• Outfall Improvement

• Stream restoration • Area-Wide Drainage

Improvement

FY2013 PROJECTS

WATERSHED PROJECTS

ACCOTINK CREEK 11

CAMERON RUN 3

CUB RUN 4

DEAD RUN 3

DIFFICULT RUN 6

DOGUE CREEK 5

HORSEPEN CREEK 4

LITTLE ROCKY RUN 2

MILL BRANCH 2

PIMMIT RUN 4

POHICK CREEK 13

POND BRANCH 4

POPES HEAD CREEK 3

SANDY RUN 1

SCOTTS RUN 0

SUGARLAND RUN 3

TURKEY RUN 1

MULTIPLE 4

73

GROUP 1 - FY12 Capital Projects

GROUP 2 - WMP Projects

GROUP 3 -Partnership Projects

GROUP 4 -Special Projects

GROUP 5 - Pro Rata Projects

GROUP 6 - Dam Safety Projects

Watershed Project ID Project Name Project TYPE DISTRICT GroupACCOTINK CREEK AC9140 Brookfield Park Dam Repair Stormwater Pond Retrofit LEE GROUP 1

CAMERON RUN FX0100-CA013 Indian Run Stream Restoration MASON GROUP 1

PIMMIT RUN FX0100-PM002 Franklin Park and Chesterbrook (Patton Terrace) PM9978 Areawide Stormwater Project DRANESVILLE GROUP 1

PIMMIT RUN George C. Marshall BMP/LID PROVIDENCE GROUP 1

POHICK CREEK PCPC008 Pohick Creek (Noman Cole PCPC-008) Stream Restoration MOUNT VERNON GROUP 1

POND BRANCH PN9408 Beach Mill Stream Restoration DRANESVILLE GROUP 1

MULTIPLE Facility Access Road Project MULTIPLE GROUP 1

ACCOTINK CREEK AC9212 Turkey Run (Truro) Stream Restoration 2500lf BRADDOCK GROUP 2

ACCOTINK CREEK AC9238 Long Branch (9238) Stream Restoration 2500lf PROVIDENCE GROUP 2

ACCOTINK CREEK AC9546 Mantua Elementary School BMP/LID Stormwater enhancements PROVIDENCE GROUP 2

ACCOTINK CREEK AC9555 Nottaway Park Stormwater enhancements PROVIDENCE GROUP 2

CUB RUN CU9186 Armfield Stormwater Pond Retrofit SULLY GROUP 2

CUB RUN CU9214 Flatlick D/S from Route 50 (Phase II) Stream Restoration SULLY GROUP 2

CUB RUN CU9821 Lees Corner Elementary School Stormwater enhancements SULLY GROUP 2

DEAD RUN DE9123 Broyhill McLean Estates Neighborhood BMP/LID Retrofit BMP/LID DRANESVILLE GROUP 2

DEAD RUN DE9244 Dead Run Stream Restoration (DE9244/DE9226) Stream Restoration DRANESVILLE GROUP 2

DIFFICULT RUN DF9045 Regional Pond D45 Alternative Outfall Improvement SULLY GROUP 2

DOGUE CREEK DC9505 Mount Vernon High School BMP/LID Stormwater enhancements MOUNT VERNON GROUP 2

DOGUE CREEK DC9513 Groveton Elementary School BMP/LID Stormwater enhancements LEE GROUP 2

HORSEPEN CREEK HC9118 Spring Lake/Floris Downs Dry Basins Improvement Stormwater Pond Retrofit HUNTER MILL GROUP 2

HORSEPEN CREEK HC9129 Bradley Acres Dry Basin and Swale Improvements Stormwater Pond Retrofit HUNTER MILL GROUP 2

HORSEPEN CREEK HC9142 Fox Mill Estates Dry Basin Improvement and Wetland New Stormwater Pond HUNTER MILL GROUP 2

LITTLE ROCKY RUN LR9510 Centreville Elementary School BMP/LID Suite Stormwater enhancements SULLY GROUP 2

LITTLE ROCKY RUN LR9516 Centreville High School BMP/LID Suite Stormwater enhancements SPRINGFIELD GROUP 2

MILL BRANCH MB9510 Silverbrook Elementary School Bioretention Stormwater enhancements SPRINGFIELD GROUP 2

POHICK CREEK PC9114 Sangster Elementary School SW Pond Retrofit Stormwater enhancements SPRINGFIELD GROUP 2

POHICK CREEK PC9126 White Oaks Elementary School SW Pond Retrofit Stormwater enhancements SPRINGFIELD GROUP 2

POHICK CREEK PC9131 Colony Park Dr. Stormwater Pond Retrofit BRADDOCK GROUP 2

POHICK CREEK PC9257 Stream Restoration Behind Harford Lane Stream Restoration BRADDOCK GROUP 2

POHICK CREEK PC9263 Stream Restoration Behind Dequincey Drive Stream Restoration BRADDOCK GROUP 2

POND BRANCH PN9104 Golden Woods Dry Basin Improvement and BMP/LID Stormwater Pond Retrofit DRANESVILLE GROUP 2

POND BRANCH PN9117 River Bend Road Dry Basin & Dry Basin Improvement New Stormwater Pond DRANESVILLE GROUP 2

ACCOTINK CREEK AC9106 Cinder Bed Rd. Alignment Stream Restoration MOUNT VERNON GROUP 3

ACCOTINK CREEK AC9233 Wakefield Park - outfall & stream Stream Restoration BRADDOCK GROUP 3

ACCOTINK CREEK FCPS CIP Ravensworth E.S. Stormwater enhancements BRADDOCK GROUP 3

ACCOTINK CREEK Mid County Health Services BMP/LID PROVIDENCE GROUP 3

ACCOTINK CREEK Wakefield Park - Parking Lot upgrade Stormwater enhancements BRADDOCK GROUP 3

CAMERON RUN CA9877 Woodrow Wilson Library Stormwater enhancements MASON GROUP 3

CUB RUN CU9807 Stringfellow Park and Ride Expansion BMP/LID SULLY GROUP 3

DEAD RUN McLean Police Station BMP/LID DRANESVILLE GROUP 3

DIFFICULT RUN FCPS CIP Forestville E.S. Stormwater enhancements DRANESVILLE GROUP 3

DIFFICULT RUN Oakton Library Innovative Stormwater Management PROVIDENCE GROUP 3

DIFFICULT RUN Public Safety Admin. Hdq. Stormwater enhancements SPRINGFIELD GROUP 3

DIFFICULT RUN Oakmar Rec Center Stormwater enhancements PROVIDENCE GROUP 3

DIFFICULT RUN Dranesville - Nike Park Stormwater enhancements DRANESVILLE GROUP 3

DOGUE CREEK FCPS CIP Woodlawn E.S. Stormwater enhancements MOUNT VERNON GROUP 3

DOGUE CREEK Route 1 Widening (also in POHICK CREEK) Innovative Stormwater MOUNT VERNON GROUP 3

HORSEPEN CREEK HC9119 Stratton Woods Park Stormwater enhancements HUNTER MILL GROUP 3

MILL BRANCH Laurel Hill Equestrian Park Stormwater enhancements MOUNT VERNON GROUP 3

PIMMIT RUN FCPS CIP Haycock E.S. Stormwater enhancements DRANESVILLE GROUP 3

PIMMIT RUNWaste Water Project (SWPD assisted -- WCD funded and constructed in FY12 - second

phase may carry over into FY13 with STW funding) Stormwater enhancements DRANESVILLE GROUP 3

POHICK CREEK Multiple South Run Park (PC9510BMP/LID 25yr) (PC9210Stream 10yr.) Stormwater enhancements SPRINGFIELD GROUP 3

POHICK CREEK Kings Park West Pool Naturalization Reforestation BRADDOCK GROUP 3

POHICK CREEK Burke Lk. Park Stormwater enhancements SPRINGFIELD GROUP 3

POPES HEAD CREEK FCPA CIP Patriot Park Stormwater enhancements SPRINGFIELD GROUP 3

SUGARLAND RUN SU9142 Herndon Fire Station BMP/LID DRANESVILLE GROUP 3

SUGARLAND RUN Reston Police Station BMP/LID HUNTER MILL GROUP 3

SUGARLAND RUN Stuart Rd. Park Stormwater enhancements HUNTER MILL GROUP 3

TURKEY RUN FCPS CIP Langley High School Stormwater enhancements DRANESVILLE GROUP 3

MULTIPLEFMD maintenance projects anticipated for FY-13 based upon a similar number of

projects in FY-12. Includes multiple-ADA upgrade projects.Various BMP/LID MULTIPLE GROUP 3

MULTIPLE Bailey's Crossroads MASON GROUP 3

MULTIPLE FCPA Outfalls Outfall Improvement

POND BRANCH NA South Lakes HS Stream Restoration DRANESVILLE GROUP 4

ACCOTINK CREEK Multiple Wakefield park streams Stream Restoration GROUP 4

CAMERON RUN Overly Drive Flood Mitigation Flood Mitigation LEE GROUP 5

DOGUE CREEK Banks Property Stream restoration LEE GROUP 5

POPES HEAD CREEK PH9189 Brentwood West PH9189-0150DP Detention Basin Retrofit SPRINGFIELD GROUP 5

POPES HEAD CREEK PH9190 Marymead Section 1 and 2 PH9190-0268DP Detention Basin Retrofit SPRINGFIELD GROUP 5

SANDY RUN SA9211 Streamwood Place Stream Restoration Stream Restoration SPRINGFIELD GROUP 5

POHICK CREEK Royal Lake Restoration and Dredging (100,000 CY) Lake Restoration and Dredging BRADDOCK GROUP 6

POHICK CREEK Woodglen Lake Restoration and Dredging Lake Restoration and Dredging BRADDOCK GROUP 6

POHICK CREEK Huntsman Lake Restoration and Dredging (65,000 CY) Lake Restoration and Dredging SPRINGFIELD GROUP 6

POHICK CREEK Huntsman Spillway Rehab Lake Restoration and Dredging SPRINGFIELD GROUP 6

Completed Water Quality Projects

• Accotink Creek -3

• Bull Neck Run – 1

• Bull Run - 1

• Cameron Run – 4

• Cub Run – 5

• Dead Run – 2

• Difficult Run - 1

• Dogue Creek – 1

• Horsepen Creek – 2

• Little Hunting Creek – 2

• Pohick Creek - 4

• Popes Head Creek - 1

• Scotts Run -1

• Sugarland Run – 2

• Turkey Run - 1

Acres Treated: 813

Linear Feet Treated: 8,799

Phosphorous Removed: 544 lb/yr

Nitrogen Removed: 3,406 lb/yr

Sediment Removed: 306 tons/yr

FY10-FY12

POLICY AND ACTION RECOMMENDATIONS

How do we go from 300 recommendations to an implementable plan?

300 Recommendations

“”

Implementation Plan

1. 300 Recommendations

2. Consolidated into Categories (Completed 2012)

3. Inter-Agency Review (Current)

4. Implementation Plan (Mid/Late 2013)

Challenges

• Aging infrastructure • Evolving Science &

Technology • Land Rights • Legal Issues • Changing Conditions • Growing Inventory • New MS4 regulatory

requirements • TMDL requirements • Economic Constraints

$0.0

$5.0

$10.0

$15.0

$20.0

$25.0

$30.0

$35.0

$40.0

$45.0

FY05 FY06 FY07 FY08 FY09 FY10 FY11 FY12 FY13

Budget AmountsAxis Title

General Fund (Operations) Fringe (General Fund)Public Works Construction (Fund 308) Stormwater Service District (Fund 125)Operations, Fringe and Contributory Operations

History of Stormwater Funding

Stormwater FY13 Budget Emergency and Flood Response,

$0.9M, 2%

Operations, $14.7M, 38%

Conveyance Systems, $5.5M,

14%

Streams and Water Quality,

$8M, 20%

Dam Safety and Facility

Rehabilitation, $5.1M, 13%

Stormwater Regulatory

Programs, $5M, 13%

WHAT CAN RESIDENTS DO

Volunteer Opportunities • Fairfax County – Stormwater Planning

• Earth Sangha

• Fairfax Releaf

• Northern VA Soil and Water Conservation District

• Fairfax County Park Authority

• Friends of Groups

• Potomac Conservancy

• Alice Ferguson Foundation

• Clean Fairfax Council

• Master Gardener/Naturalist

• Izaak Walton League

www.fairfaxcounty.gov/dpwes/stormwater/volunteer.htm

703-324-5500, TTY 711 [email protected]

COMPLETED PROJECTS

Stream Restoration

Drainage Area (acres)

Phosphorous Removal (lbs/yr)

Nitrogen Removal (lbs/yr)

Sediment Removal (tons/yr)

230.4 7.5 141 1.25

Poplar Springs - Before & After

Stream Restoration Poplar Springs - Now

Outfall Retrofits





29.25 63.92 188 145.7

Sheffield Hunt– Before & After

Stream Restoration





150 10.7 202 1.6

Government Center - Before & After

Area Treated (acres)




92.25 50.48 361.16 3.88

Pond Retrofits Sequoia Farms - Before & After

Pond Retrofits





11 9 68 2.1

Cinnamon Oaks - Before & After

Pond Retrofits Cinnamon Oaks - Now





1.4 2 12 0.5

Low Impact Development Franklin Middle School - Parking Lot

Bioretention Before & After

Low Impact Development Franklin Middle School - Parking Lot Bioretention

Now

Low Impact Development





0.82 1.55 11.10 0.12

FCPS Partnership Project Waples Mill - Before & After






0.72 0.69 4.92 0.07

FCPS Partnership Project Shrevewood Elementary Porous Asphalt - Before & After

Low Impact Development FCPS Partnership Project

Shrevewood Elementary Porous Asphalt - Now






1.7 3 12 0.6

Sherwood Library - Permeable Pavers During & After

Low Impact Development Sherwood Library - Permeable Pavers - Now

Low Impact Development Sherwood Library – Tree Box Filters

Crape Myrtles with One Year of Growth






1.29 2.2 4.7 0.6

Walt Whitman Middle School – Rain Gardens

Low Impact Development Walt Whitman Middle School – Rain Gardens

Now

Low Impact Development Fairfax County Park Authority Partnership Project

Great Falls Nike Site Turf Field Conversion – Before & During

Questions?

Stormwater Planning Division

703-324-5500, TTY 711

www.fairfaxcounty.gov/dpwes/stormwater

www.fairfaxcounty.gov/dpwes/watersheds

[email protected]

Fairfax County is committed to nondiscrimination on the basis of disability in all county programs, services and activities.

To request this information in an alternate format, call the Stormwater Planning Division at 703-324-5500, TTY 711

Documents

Stormwater Program Wateshed Management Plan …...ACCOTINK CREEK AC9238 Long Branch (9238) Stream Restoration 2500lf PROVIDENCE GROUP 2 ACCOTINK CREEK AC9546 Mantua Elementary School